Air Force Two with U.S. Vice President Joe Biden and his wife Jill Biden onboard taxies at the Tegel airport in Berlin, Germany, Friday, Feb. 1, 2013. Biden is expected to meet with Chancellor Angela Merkel in Berlin and to attend the annual Munich Security Conference in Munich that starts later Friday. In his meeting with Merkel - his first official visit to Berlin since first taking office in 2009 - Biden is to address international issues, bilateral ties, efforts to seal a free trade deal between Europe and the U.S. and a possible visit by US President Barack Obama to Berlin.(AP Photo/Gero Breloer)